| Patents for C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations (31,745) |
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| 05/08/1984 | US4447341 Clay stabilizer composition for aqueous drilling fluids |
| 05/08/1984 | US4447339 Oil well drilling clay conditioners and method of their preparation |
| 05/08/1984 | US4447338 Neutralized, sulfonated ethylene-propylene-ethylidene norbornene terpolymer and butyl rubber |
| 05/08/1984 | US4446919 Injecting carbon dioxide to produce nutrients for microorganism growth to produce surfactants |
| 05/08/1984 | CA1166838A1 Compositions and method for thickening aqueous brines |
| 05/02/1984 | EP0107484A2 Fracturing method for stimulation of wells |
| 05/02/1984 | EP0107403A1 Acrylamide-containing emulsion copolymers, their use for thickening and compositions containing them |
| 05/02/1984 | EP0107316A1 Sodium styrene sulfonate-co-sodium-N-(4-sulfophenyl)-maleimide - an improved viscosity control additive |
| 05/01/1984 | US4446079 Low cost, brine tolerant sulfonate and sulfate surfactants having 1,3-dihydrocarboxy-2-propyl hydrophobic tails |
| 05/01/1984 | US4446054 Demulsification of surfactant-petroleum-water flood emulsions |
| 05/01/1984 | US4446036 Micellar displacement fluid |
| 05/01/1984 | US4445576 Water in oil emulsions for plugging |
| 05/01/1984 | CA1166435A1 Method of thickening heavy brine solutions |
| 05/01/1984 | CA1166434A1 Process and composition for scavenging hydrogen sulfide in aqueous drilling fluids |
| 04/26/1984 | WO1984001580A2 Methods of using strong acids modified with acid solutions |
| 04/25/1984 | EP0106666A2 Stabilizing polysaccharide solutions for tertiary oil recovery at elevated temperature with dithionite |
| 04/25/1984 | EP0106665A1 Stabilizing polysaccharide solutions for tertiary oil recovery at elevated temperature with borohydride |
| 04/25/1984 | EP0106530A1 Drilling fluids based on powdered sulfonated thermoplastic polymers |
| 04/25/1984 | EP0106529A1 Improved drilling fluids based on sulfonated elastomeric polymers |
| 04/25/1984 | EP0106528A1 Drilling fluids based on sulfonated thermoplastic polymers having improved low temperature rheological properties |
| 04/25/1984 | EP0106234A1 Use of amine salts of maleamic acid as corrosion inhibitors of C02 and H2S in water in oil emulsions |
| 04/24/1984 | US4444668 Well completion fluid compositions |
| 04/24/1984 | US4444264 Method of using a diverting material for well treatment |
| 04/24/1984 | US4444262 Method of using amines as sacrificial agents for chemical flooding |
| 04/24/1984 | US4444261 High sweep efficiency steam drive oil recovery method |
| 04/24/1984 | CA1166264A1 Organophilic clay complexes |
| 04/17/1984 | US4443347 Fracturing, injection, phenolic resin coatings on sand |
| 04/17/1984 | US4442897 Formation fracturing method |
| 04/10/1984 | US4442241 Shear thickening composition |
| 04/10/1984 | US4442043 Oil recovery method utilizing a dicyclopentadiene derived ethoxysulfonate |
| 04/10/1984 | US4442042 Process of making propane sulfonates |
| 04/10/1984 | US4442018 Stabilized aqueous foam systems and concentrate and method for making them |
| 04/10/1984 | US4442014 Use of esters of sulfonic acids as anti-sludge agents during the acidizing of formations containing sludging crude oils |
| 04/10/1984 | US4442011 Drilling mud viscosification agents based on sulfonated ionomers |
| 04/10/1984 | US4441556 Diverter tool and its use |
| 04/10/1984 | US4441555 Carbonated waterflooding for viscous oil recovery |
| 04/04/1984 | EP0104927A2 Method and compositions for fracturing subterranean formations |
| 04/04/1984 | EP0104829A1 Improved drilling fluids based on a mixture of a sulfonated thermoplastic polymer and a sulfonated elastomeric polymer |
| 04/03/1984 | US4440866 Process for the production of sintered bauxite spheres |
| 04/03/1984 | US4440653 Highly stable alcohol foams and methods of forming and using such foams |
| 04/03/1984 | US4440652 Alkoxylated polyacrylamide |
| 04/03/1984 | US4440651 Use of peroxide in waterflood oil recovery |
| 04/03/1984 | US4440650 Process for enhancing recovery of oil from oil-bearing earth formations |
| 04/03/1984 | US4440649 Well drilling and completion fluid composition |
| 04/03/1984 | US4440228 Gelled compositions and well treating |
| 04/03/1984 | US4440225 Oil recovery using modified heteropolysaccharides in buffered brine |
| 03/28/1984 | EP0104009A1 Process for making cross-linked carboxymethyl hydroxyethyl cellulose |
| 03/28/1984 | EP0103779A2 Removing contaminates from a well fluid and well system |
| 03/28/1984 | EP0103737A1 Corrosion inhibitors for C02 and H2S in water in oil emulsions |
| 03/27/1984 | US4439489 Particles covered with a cured infusible thermoset film and process for their production |
| 03/27/1984 | US4439334 Enhanced oil recovery methods and systems |
| 03/27/1984 | US4439333 Hydroxyethyl cellulose, a phenol, solvent |
| 03/27/1984 | US4439332 Stable emulsion copolymers of acrylamide and ammonium acrylate for use in enhanced oil recovery |
| 03/27/1984 | US4439328 Well servicing fluid additive |
| 03/27/1984 | US4438976 Method of repair of short circuits for in situ leaching |
| 03/27/1984 | US4438814 Oil recovery method employing alternate slugs of surfactant and fresh water |
| 03/21/1984 | EP0103483A2 A method of preparing modified heteropolysaccharides in buffered brine and their use for oil recovery |
| 03/21/1984 | EP0103482A1 Improved drilling fluids based on a mixture of sulfonated thermoplastic polymer and an amine-treated clay |
| 03/20/1984 | US4438002 Surfactant flooding solution |
| 03/20/1984 | CA1163919A1 Steam injection method and apparatus for recovery of oil |
| 03/14/1984 | EP0102827A2 A shear thickening composition with polyacrylic acid |
| 03/14/1984 | EP0102761A1 Sintered spherical pellets useful as gas and oil well proppants, production and use thereof |
| 03/14/1984 | EP0102351A1 Hydraulic fluid compositions |
| 03/13/1984 | US4436940 Photochemical method for preparing low molecular weight olefin polymers and copolymers of 3-butene-1-ol |
| 03/13/1984 | US4436862 Polyetherurethane copolymers |
| 03/13/1984 | US4436681 Process for producing iron oxide weighting material from iron chloride solutions |
| 03/13/1984 | US4436672 Oil recovery method utilizing glyceryl ether sulfonates |
| 03/13/1984 | US4436639 Corrosion resistance |
| 03/13/1984 | US4436638 Additive composition for release of stuck drill pipe |
| 03/13/1984 | US4436636 Small particles of high density polyethylene |
| 03/13/1984 | US4436156 Method of treating well formations employing foamed treatment fluids |
| 03/13/1984 | CA1163429A1 Delivery of polymeric antiprecipitants in oil wells employing an oil soluble carrier system |
| 03/07/1984 | EP0102269A1 Pumpable concentrated dispersions of water-soluble polymers |
| 03/07/1984 | EP0102249A2 Plugging wellbores with polyacrylic acid shear thickening composition |
| 03/07/1984 | EP0101855A1 Low density proppant for oil and gas wells |
| 03/06/1984 | US4435564 Compositions and processes for using hydroxyethyl cellulose in heavy brines |
| 03/06/1984 | US4435361 Corrosion inhibition system containing dicyclopentadiene sulfonate salts |
| 03/06/1984 | US4435295 From an alkyl aromatic feedstock mixture |
| 03/06/1984 | US4435218 Organoclay, solid alcohol |
| 03/06/1984 | CA1163090A1 Fluid loss control in saturated salt cement slurries |
| 02/28/1984 | US4434062 Oil displacement enhanced by lyotropic liquid crystals in highly saline media |
| 02/28/1984 | US4433731 Carboxymethylhydroxyethycellulose and naphthalenesulfonic acid formaldehyde condensate |
| 02/28/1984 | US4433730 Optimum grading of chemical concentrations in a micellar flood |
| 02/28/1984 | US4433729 Injecting aqueous caustic, a polyvalent cation, and a hydrocarbon spacer to form preciptiate |
| 02/28/1984 | US4433728 Adding aqueous caustic solution containing a polyvalent cation |
| 02/28/1984 | US4433727 Oil recovery process |
| 02/28/1984 | CA1162922A1 Lignosulfonic acid derivatives, process for producing them and their use as additives in drilling buoys |
| 02/28/1984 | CA1162819A1 Suspensions containing microfibrillated cellulose |
| 02/28/1984 | CA1162725A1 Drilling fluid composition |
| 02/21/1984 | US4432882 Containing copolymer of fluorinated, unsaturated, acyclic ester and unsaturated acyclic ester- useful as oil well fracturing liquid and textile treatment |
| 02/21/1984 | US4432881 Water soluble polymer, surfactant, and salt-used in enhanced oil recovery |
| 02/21/1984 | CA1162398A1 Stimulation of oil and gas wells with alkyl or aralkyl polyoxyalkylene phosphate |
| 02/14/1984 | US4431778 Process for secondary recovery |
| 02/14/1984 | US4431734 Using a polysaccharase and protease to remove microgels and cell framents; synergistic |
| 02/14/1984 | US4431551 Oxazolines of 2-(alkylthio)succinic acids as an additive for drilling muds |
| 02/14/1984 | US4431550 Drilling fluid viscosifier |
| 02/14/1984 | US4431548 Sewage treatment; co-or terpolymer having a monomer such as the salt of a dialkylaminoalkyl acrylate and chloroacetic acid |
| 02/08/1984 | EP0100071A2 Method and compositions for acidizing and fracturing wells |
| 02/07/1984 | US4430482 Process for secondary recovery |
| 02/07/1984 | US4430481 Secondary recovery method |